<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
    <template id="msg">
        <div>
            <h1>你啊</h1>
        </div>
    </template>
    <div id="app">
        {{name}}
        <hellow/>
        <!-- <msga/> -->
    </div>
    <div id="app2">
        {{name}}
        <hellow/>
        <!-- <msga/> -->
    </div>
</body>
</html>
<script>
    Vue.component(
        'hellow',
        {
            template:'#msg',
        }
    )
    new Vue({
        el:'#app',
        data:{
            name:'ming'
        }
    })
    new Vue({
        el:'#app2',
        data:{
            name:'hong'
        }
    })
</script>